<p>The present invention relates to an electric outlet which facilitates a plug in state with a naked eye of a user at day or night, and includes: a dent shaped socket (502); a body (508) which has a first connection hole (504) to which a connection terminal of a plug can be inserted into one side of the bottom surface of the socket and a second connection hole (506) to which a connection terminal of the plug can be inserted into one side of the bottom surface of the socket with a predetermined distance from the first connection hole; a light-emitting unit (510) which is installed and fixed to the outer surface of the socket of the body while penetrating one side of the top surface of the body and protruding from the body; an elastic material first metal line (512) which is installed and fixed along one side of the bottom surface of the socket while the outer surface of one side thereof is protruding toward the inside of the first connection hole; a 50-ohm resistor (514) which is installed and fixed along the one side of the bottom surface of the socket while being connected to one end of the light-emitting unit and one end of the elastic material first metal line simultaneously; and an elastic material second metal line (516) which is installed and fixed along the one side of the bottom surface of the socket with a predetermined distance from the elastic material first metal line, the outer surface of the one side thereof are protruding toward the inside of the second connection hole and is being connected to one end of the light-emitting unit.</p>
